* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
  }
  body {
    font: 12px/1.5 "Microsoft YaHei";
  }
  ul li,
  ol li {
    list-style: none;
  }
  img {
    border: none;
    display: block;
  }
  a {
    text-decoration: none;
  }
  